Undocumented immigrants are boosting the labor market and helping the US avoid recession, experts say

• Undocumented immigration has boosted the labor market, helping steer the US away from a recession, some experts say.
• A study from the Brookings Institution argued that total immigration numbers are higher than other major agencies estimate due to undercounting of undocumented individuals.
• Morgan Stanley's chief US economist has also recently cited undocumented immigration as a positive labor-market force.

Here's a question that's been lurking beneath the stellar economic resilience in the US: how has the labor market stayed so strong?

Some experts have an answer: undocumented immigration.